Finding the Fourth Proportional to 1,380,595.64, 1,905,809.88 and 928,149.08
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Solution
The fourth proportional to 1,380,595.64, 1,905,809.88 and 928,149.08 is: 1,281,240.96
Step by Step Solution
- Step 1: Write the proportion equation
1,380,595.64 : 1,905,809.88 = 928,149.08 : x - Step 2: Convert to fraction form
1,380,595.64/1,905,809.88 = 928,149.08/x - Step 3: Cross multiply
1,380,595.64x = 1,905,809.88 × 928,149.08 - Step 4: Simplify right side
1,380,595.64x = 1,768,875,686,776.91 - Step 5: Solve for x
x = 1,768,875,686,776.91/1,380,595.64 - Step 6: Final answer
x = 1,281,240.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.